Hi all,
Im going to GRP a 12sqm flat roof on extension which abuts neighbors extension on one side
I am doing work through building regs... and they want it insulated with 100mm king span between joists then 25mm under that.
I am guessing that they will accept 75mm between joists but this still only leaves me with around 25-40mm of space between insulation and roof, and then I have a problem of how to create adequate ventilation because even if I some how install vents its blocked off on neighbors side
My question is this: if i fill the whole void in with insulation and do not leave any space/air, will this not solve my problem of any possible sweating???
Thanks
legepe
Im going to GRP a 12sqm flat roof on extension which abuts neighbors extension on one side
I am doing work through building regs... and they want it insulated with 100mm king span between joists then 25mm under that.
I am guessing that they will accept 75mm between joists but this still only leaves me with around 25-40mm of space between insulation and roof, and then I have a problem of how to create adequate ventilation because even if I some how install vents its blocked off on neighbors side
My question is this: if i fill the whole void in with insulation and do not leave any space/air, will this not solve my problem of any possible sweating???
Thanks
legepe
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